12 adult tickets and 10 student tickets = total of 270. how much he are tickets

Find a number such that if you add 8 and divide the result by 4 you will get the same answer as if you subtracted 3 from the original number and divided by 2

The center on a target has a diameter of 5 inches. the whole target has a diameter of 25 inches. complete the explanation for what part of the whole target is the center. the center of the target takes up % of the whole target.

Lucy spent $165 in december using a new credit card. in january, she began paying between $15 and $25 each month towards her account balance.